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Optimise your MCNP® workflow with Cyclone™

  • Code Editor
  • Particle Tracking
  • CAD Import
  • Accurate Ray Tracing
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Redefining Nuclear Industry Software

Orthrus Software is a UK-based leader in nuclear software innovation, combining deep expertise in radiation shielding, criticality safety, and advanced technologies like machine learning and computer vision. Our flagship product, Cyclone, transforms the use of MCNP® through powerful parameterisation, intuitive model creation, and advanced visualisation.

With features including a built-in code editor, extensive parameter control, a comprehensive material database, and state-of-the-art visualisation tools, Cyclone streamlines Monte Carlo simulations for shielding and criticality analysis, enhances quality assurance, and reduces the risk of error.

We’re continuously evolving Cyclone based on user feedback and proudly offer dedicated support, with enhanced services for Pro and Enterprise clients, ensuring the software meets the dynamic needs of the nuclear industry.

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Why Cyclone Empowers Your Workflow

With advanced visualisation, material libraries, and CAD integration, Cyclone ensures your models are accurate, transparent, and easy to validate.

Advanced Code Editor & Parameterisation

Write from scratch or import existing MCNP® models with syntax-highlighted editing, rich parameterisation, and even built-in support for Python expressions and mathematical functions—streamlining model setup and QA.

Extensive Material Library

Access the complete PNNL Compendium of material compositions and effortlessly build your own custom mixtures—minimising errors and accelerating material setup.

Modern CAD Visualisation

Toggle between solid, translucent, or wireframe views of individual cells and materials, slice through models, and use overlap detection to catch geometry issues with ease.

MCNP-Aligned Ray Tracing

Visualise your model exactly as MCNP® sees it through accurate 2D and 3D ray tracing—perfect for validation and deep insight into geometry interpretation.

Radiation Data Overlays & Particle Tracking

Overlay FMESH tally dose contours directly onto your model, customise their appearance for presentation, and visualise PTRACK files to observe particle interactions in context.

CAD Interoperability

Import .stl files to overlay CAD context, export models to CAD, merge CAD with MCNP® models.

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